Matches both calls, (since each call join point has at least
one matching signature).

call(* A.whoAreYou())

Matches both calls, (since each call join point has at least
one matching signature).

call(A whoAreYou())

Matches both calls, (since each call join point has at least
one matching signature).

call(A B.whoAreYou())

Does not match anything - neither of the call join points
has a signature matched by this pattern. A lint warning is
given for the call a.whoAreYou() ("does not match
because declaring type is A, if match required use target(B)").

call(A+ B.whoAreYou())

Matches the call to b.whoAreYou() since
the signature pattern matches the signature B B.whoAreYou().
A lint warning is given for the call a.whoAreYou() ("does not match
because declaring type is A, if match required use target(B)").

call(B A.whoAreYou())

Does not match anything since neither join point has a
signature matched by this pattern.

call(B whoAreYou())

Matches the call to b.whoAreYou() only.

call(B B.whoAreYou())

Matches the call to b.whoAreYou() only.

The rule for signature matching at call and execution join points
is unchanged from AspectJ 1.2: a call or execution pointcut matches if
the signature pattern matches at least one of the signatures of the
join point, and if the modifiers of the method or constructor are matched
by any modifier pattern or annotation pattern that may be present.